Finding the Fourth Proportional to 91,971,872.16, 137,371,512.75 and 83,204,687.31
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Solution
The fourth proportional to 91,971,872.16, 137,371,512.75 and 83,204,687.31 is: 124,276,623.88
Step by Step Solution
- Step 1: Write the proportion equation
91,971,872.16 : 137,371,512.75 = 83,204,687.31 : x - Step 2: Convert to fraction form
91,971,872.16/137,371,512.75 = 83,204,687.31/x - Step 3: Cross multiply
91,971,872.16x = 137,371,512.75 × 83,204,687.31 - Step 4: Simplify right side
91,971,872.16x = 11,429,953,763,665,428 - Step 5: Solve for x
x = 11,429,953,763,665,428/91,971,872.16 - Step 6: Final answer
x = 124,276,623.88
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.